438229522 has 4 divisors (see below), whose sum is σ = 657344286. Its totient is φ = 219114760.

The previous prime is 438229501. The next prime is 438229567. The reversal of 438229522 is 225922834.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 257891481 + 180338041 = 16059^2 + 13429^2 .

It is a super-2 number, since 2×438229522² = 384090227904696968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109557379 + ... + 109557382.

Almost surely, 2^438229522 is an apocalyptic number.

438229522 is a deficient number, since it is larger than the sum of its proper divisors (219114764).

438229522 is a wasteful number, since it uses less digits than its factorization.

438229522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219114763.

The product of its digits is 69120, while the sum is 37.

The square root of 438229522 is about 20933.9323109635. The cubic root of 438229522 is about 759.5689626452.

The spelling of 438229522 in words is "four hundred thirty-eight million, two hundred twenty-nine thousand, five hundred twenty-two".